//
//  QLBasicViewController.m
//  QLOperation
//
//  Created by Shrek on 15/5/26.
//  Copyright (c) 2015年 Personal. All rights reserved.
//

/** QLDEBUG Print */
#ifdef DEBUG
#define QLLog(FORMAT, ...) fprintf(stderr,"M:%s|L:%d :%s\n", __FUNCTION__, __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);
#else
#define QLLog(FORMAT, ...)
#endif

#import "QLBasicViewController.h"

@interface QLBasicViewController ()

@end

@implementation QLBasicViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self blockOperation];
}

- (void)operationQueue2 {
    NSBlockOperation *operation1 = [NSBlockOperation blockOperationWithBlock:^{
        QLLog(@"NSBlockOperation------下载图片1---%@", [NSThread currentThread]);
    }];
    NSBlockOperation *operation2 = [NSBlockOperation blockOperationWithBlock:^{
        QLLog(@"NSBlockOperation------下载图片2---%@", [NSThread currentThread]);
    }];
    [operation2 addExecutionBlock:^{
        QLLog(@"NSBlockOperation------下载图片22---%@", [NSThread currentThread]);
    }];
    
    /** 最大并发数 */
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];
    queue.maxConcurrentOperationCount = 2;
    
    [queue addOperation:operation1];
    [queue addOperation:operation2];
    
    [queue addOperationWithBlock:^{
        QLLog(@"NSBlockOperation------下载图片3---%@", [NSThread currentThread]);
    }];
}

- (void)opeationListen {
    NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
        for (int i = 0; i<10; i++) {
            QLLog(@"NSBlockOperation------下载图片---%@", [NSThread currentThread]);
        }
    }];
    operation.completionBlock = ^{
        // ...下载完图片后想做事情
        QLLog(@"NSBlockOperation------下载图片完毕---%@", [NSThread currentThread]);
    };
    
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];
    [queue addOperation:operation];
}

- (void)operationQueue {
    // 1.封装操作
    NSInvocationOperation *operation1 = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(download) object:nil];
    //    operation1.queuePriority = NSOperationQueuePriorityHigh
    
    NSInvocationOperation *operation2 = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(run) object:nil];
    
    NSBlockOperation *operation3 = [NSBlockOperation blockOperationWithBlock:^{
        for (int i = 0; i < 10; i++) {
            QLLog(@"NSBlockOperation------下载图片---%@", [NSThread currentThread]);
            [NSThread sleepForTimeInterval:0.1];
        }
    }];
    //[operation3 addExecutionBlock:^{
    //    for (int i = 0; i<10; i++) {
    //        QLLog(@"NSBlockOperation------下载图片2---%@", [NSThread currentThread]);
    //        [NSThread sleepForTimeInterval:0.1];
    //    }
    //}];
    
    // 2.创建队列
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];
    queue.maxConcurrentOperationCount = 2; // 2 ~ 3为宜
    
    /** 设置依赖 */
    [operation2 addDependency:operation3];
    [operation3 addDependency:operation1];
    
    // 3.添加操作到队列中(自动执行操作, 自动开启线程)
    [queue addOperation:operation1];
    [queue addOperation:operation2];
    [queue addOperation:operation3];
    
    //[queue setSuspended:YES];
}

- (void)blockOperation {
    // 1.封装操作
    //NSBlockOperation *operation = [NSBlockOperation blockOperationWithBlock:^{
    //    QLLog(@"NSBlockOperation------下载图片1---%@", [NSThread currentThread]);
    //}];
    
    NSBlockOperation *operation = [[NSBlockOperation alloc] init];
    
    [operation addExecutionBlock:^{
        QLLog(@"NSBlockOperation------下载图片1---%@", [NSThread currentThread]);
    }];
    
    [operation addExecutionBlock:^{
        QLLog(@"NSBlockOperation------下载图片2---%@", [NSThread currentThread]);
    }];
    
    [operation addExecutionBlock:^{
        QLLog(@"NSBlockOperation------下载图片3---%@", [NSThread currentThread]);
    }];
    
    // 2.执行操作
    [operation start];
}

- (void)invocationOperation {
    // 1.创建操作对象, 封装要执行的任务
    NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(download) object:nil];
    
    // 2.执行操作(默认情况下, 如果操作没有放到队列queue中, 都是同步执行)
    [operation start];
}

- (void)download {
    for (int i = 0; i<10; i++) {
        QLLog(@"------download---%@", [NSThread currentThread]);
        [NSThread sleepForTimeInterval:0.1];
    }
}

- (void)run {
    for (int i = 0; i<10; i++) {
        QLLog(@"------run---%@", [NSThread currentThread]);
        [NSThread sleepForTimeInterval:0.1];
    }
}

@end
